Rarely reported side effects include: an erection that will not go away priapism. However, others work on a cash-pay basis and don’t partner with insurance companies. Read our editorial process. This increase in blood flow results in a firmer, longer-lasting erection. And not all online pharmacies have the capability to safely ship medications that need to be temperature-controlled, such as insulin. Independent online pharmacies operate solely on the Internet, either domestically or internationally. However, all medications come with risks.Depending on your symptoms and needs, you may be prescribed Viagra, sildenafil, Cialis, tadalafil, Stendra, paroxetine, or a combination of tadalafil and sildenafil, available as . Tips for buying Viagra online Have an accurate diagnosis and prescription: Remember that Viagra and generic sildenafil are not available over the Use a licensed pharmacy to . Most popular Safeway $ retail Save 94% $ Get free savings Low price Walgreens $ retail Save 94% $ Get free savings directions Closest store Rite Aid.